76534376497 has 4 divisors (see below), whose sum is σ = 77277428800. Its totient is φ = 75791324196.

The previous prime is 76534376491. The next prime is 76534376537. The reversal of 76534376497 is 79467343567.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79467343567 = 2333 ⋅34062299.

It is a cyclic number.

It is not a de Polignac number, because 76534376497 - 2³¹ = 74386892849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76534376491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371525997 + ... + 371526202.

It is an arithmetic number, because the mean of its divisors is an integer number (19319357200).

Almost surely, 2^76534376497 is an apocalyptic number.

It is an amenable number.

76534376497 is a deficient number, since it is larger than the sum of its proper divisors (743052303).

76534376497 is a wasteful number, since it uses less digits than its factorization.

76534376497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743052302.

The product of its digits is 80015040, while the sum is 61.

The spelling of 76534376497 in words is "seventy-six billion, five hundred thirty-four million, three hundred seventy-six thousand, four hundred ninety-seven".